Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-07-2024 11:24

General

  • Target

    MalwareBazaar.exe

  • Size

    400KB

  • MD5

    9428d54a4aa6eb66abdca820a8f47d12

  • SHA1

    abd2a8b44ee4d5fd4cdb947600f340864dcf254f

  • SHA256

    f626d873512895ed8be4ead8d18d4db04bdb19a74a83d44759a45257582a75cd

  • SHA512

    14024233434003249a918871e81f10048f13fa2079ce5c0bb78893bfef6621d8daa64031539b2a6b4627019935ea43a8f3de9e56937b5ec8a50af08258653c80

  • SSDEEP

    12288:OGnKCJuXGUHTmuGwZyYMggzHm64P5WylOHVqZ:OGjutj/mFZylO1qZ

Malware Config

Signatures

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • UAC bypass 3 TTPs 1 IoCs
  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 3 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies registry key 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
    "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:948
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" -windowstyle hidden "$Chemosensitivity=Get-Content 'C:\Users\Admin\AppData\Roaming\annekskirkers\dommedagens\nonmenial\Rhagadiform199.Udl';$saalbnkes=$Chemosensitivity.SubString(72809,3);.$saalbnkes($Chemosensitivity)"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4392
      • C:\Program Files (x86)\windows mail\wab.exe
        "C:\Program Files (x86)\windows mail\wab.exe"
        3⤵
        • Suspicious use of NtCreateThreadExHideFromDebugger
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3516
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Offervilliges" /t REG_EXPAND_SZ /d "%Quaternary% -windowstyle minimized $Funktionslederes=(Get-ItemProperty -Path 'HKCU:\Tilstransportlvr\').Directoryet;%Quaternary% ($Funktionslederes)"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2248
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Offervilliges" /t REG_EXPAND_SZ /d "%Quaternary% -windowstyle minimized $Funktionslederes=(Get-ItemProperty -Path 'HKCU:\Tilstransportlvr\').Directoryet;%Quaternary% ($Funktionslederes)"
            5⤵
            • Adds Run key to start application
            • Modifies registry key
            PID:3700
        • C:\Windows\SysWOW64\cmd.exe
          /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1456
          • C:\Windows\SysWOW64\reg.exe
            C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
            5⤵
            • UAC bypass
            • Modifies registry key
            PID:592
        • C:\Program Files (x86)\windows mail\wab.exe
          "C:\Program Files (x86)\windows mail\wab.exe" /stext "C:\Users\Admin\AppData\Local\Temp\idgiecvpdnej"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:764
        • C:\Program Files (x86)\windows mail\wab.exe
          "C:\Program Files (x86)\windows mail\wab.exe" /stext "C:\Users\Admin\AppData\Local\Temp\lxlafvgjrvwojhd"
          4⤵
          • Accesses Microsoft Outlook accounts
          PID:1180
        • C:\Program Files (x86)\windows mail\wab.exe
          "C:\Program Files (x86)\windows mail\wab.exe" /stext "C:\Users\Admin\AppData\Local\Temp\vzrlxfylfdotlvrqtq"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1016

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    df9af598540cc1e81d51db156a66ddc9

    SHA1

    c3f0c3f9dc69f5b30c6b0d7b53f6a171aa49ec7f

    SHA256

    279f0d7df6d5ffc8b2d9b515de36c7fc5f36708288205a2143e22829b4a9f0d1

    SHA512

    dd6358c6eaf18ac981f94eacee0fe6bd9670bc80e3bee7209bf3c442eb488ce17bdf104830151806c4d7f70c720198c7ae702536d78e05de3d3107a5fade7e11

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qadkf1kl.1dm.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\idgiecvpdnej

    Filesize

    4KB

    MD5

    bd1b326cef85cdd2c476b77c3ef90b46

    SHA1

    c402aaa0b62e294ffa1f4645dbb5798b6891d3bd

    SHA256

    a09dbd894f070dfbdaeec662950cbe91de844d4249fe490cfa3b3f5992060ce3

    SHA512

    62da53fd57b7c053fe9cedd3bc603465a4879aac07d2da118f52a88423865edb9dddeba9650fcf79a26e6db83f5cbb92e49df6a41c4df466c671e485372e0cd7

  • C:\Users\Admin\AppData\Roaming\annekskirkers\dommedagens\nonmenial\Rhagadiform199.Udl

    Filesize

    71KB

    MD5

    fc2223e92e3b7eb6b306e7489bc9ea76

    SHA1

    a886646121c2d0882b0f69cff28277fea465a431

    SHA256

    86fab35b54a947d4aba1fe2915a69748b51a8ee9cf9791678dcecda609d427af

    SHA512

    98ca788deef3630dbae7146d5377c44cd57a1bda8277a25170a033017f4a8b414e272d6d97e94139e306fed1e28e294a1e08d09d90fa49dc675ba5c9dda7e55e

  • C:\Users\Admin\AppData\Roaming\annekskirkers\dommedagens\nonmenial\Terzio.Pre27

    Filesize

    342KB

    MD5

    bd2cb39300237694661fcb0686d7aeec

    SHA1

    c912db66db40e04a9436c248d8ee19eaa4e2c5c7

    SHA256

    33deda6aca491470e132ec1feead0d380bd35b792f886a1cd1f1ce29e9b5b21e

    SHA512

    49ecdaa68f3d1502d947faae83da3e24cf2459c6a2576a07dcb14ab0ddc14c76b9d4874d823463e1c4ee4453764cf9c2f2930c3b4ca1513294c003bb8cf21d89

  • memory/764-72-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/764-71-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/764-64-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1016-69-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1016-66-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1016-68-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1180-67-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/1180-70-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/1180-65-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/3516-78-0x0000000021A90000-0x0000000021AA9000-memory.dmp

    Filesize

    100KB

  • memory/3516-82-0x0000000021A90000-0x0000000021AA9000-memory.dmp

    Filesize

    100KB

  • memory/3516-81-0x0000000021A90000-0x0000000021AA9000-memory.dmp

    Filesize

    100KB

  • memory/3516-86-0x0000000077891000-0x00000000779B1000-memory.dmp

    Filesize

    1.1MB

  • memory/3516-62-0x0000000001970000-0x0000000005A32000-memory.dmp

    Filesize

    64.8MB

  • memory/3516-48-0x0000000077891000-0x00000000779B1000-memory.dmp

    Filesize

    1.1MB

  • memory/3516-49-0x0000000077918000-0x0000000077919000-memory.dmp

    Filesize

    4KB

  • memory/4392-28-0x00000000069A0000-0x00000000069EC000-memory.dmp

    Filesize

    304KB

  • memory/4392-31-0x0000000007AF0000-0x0000000007B12000-memory.dmp

    Filesize

    136KB

  • memory/4392-41-0x0000000009380000-0x000000000D442000-memory.dmp

    Filesize

    64.8MB

  • memory/4392-42-0x0000000073E4E000-0x0000000073E4F000-memory.dmp

    Filesize

    4KB

  • memory/4392-43-0x0000000073E40000-0x00000000745F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4392-44-0x0000000073E40000-0x00000000745F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4392-46-0x0000000073E40000-0x00000000745F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4392-47-0x0000000073E40000-0x00000000745F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4392-38-0x0000000073E40000-0x00000000745F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4392-37-0x0000000073E40000-0x00000000745F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4392-36-0x0000000073E40000-0x00000000745F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4392-34-0x0000000008D00000-0x000000000937A000-memory.dmp

    Filesize

    6.5MB

  • memory/4392-32-0x00000000080D0000-0x0000000008674000-memory.dmp

    Filesize

    5.6MB

  • memory/4392-40-0x0000000073E40000-0x00000000745F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4392-30-0x0000000006E10000-0x0000000006E2A000-memory.dmp

    Filesize

    104KB

  • memory/4392-29-0x0000000006E60000-0x0000000006EF6000-memory.dmp

    Filesize

    600KB

  • memory/4392-9-0x0000000073E4E000-0x0000000073E4F000-memory.dmp

    Filesize

    4KB

  • memory/4392-27-0x0000000006900000-0x000000000691E000-memory.dmp

    Filesize

    120KB

  • memory/4392-26-0x0000000006350000-0x00000000066A4000-memory.dmp

    Filesize

    3.3MB

  • memory/4392-16-0x00000000062E0000-0x0000000006346000-memory.dmp

    Filesize

    408KB

  • memory/4392-15-0x0000000006200000-0x0000000006266000-memory.dmp

    Filesize

    408KB

  • memory/4392-14-0x0000000005A30000-0x0000000005A52000-memory.dmp

    Filesize

    136KB

  • memory/4392-13-0x0000000073E40000-0x00000000745F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4392-12-0x0000000073E40000-0x00000000745F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4392-11-0x0000000005B60000-0x0000000006188000-memory.dmp

    Filesize

    6.2MB

  • memory/4392-10-0x0000000003330000-0x0000000003366000-memory.dmp

    Filesize

    216KB